Dosing & CO2 for a 120 Gal, Tank

Spine · Post by **Spine** » Thu Aug 03, 2006 4:27 pm

I'm just starting a 120 gal tank are there any guide lines that I should follow as far as dosing and CO2 for this tank? I have mostly Swords and Crypts with some stem plants .

Thanks
Kevin

Ghazanfar Ghori · Post by **Ghazanfar Ghori** » Thu Aug 03, 2006 4:33 pm

Pump up the CO2 until the fish start swimming funny, then turn it down a notch.

Aaron · Post by **Aaron** » Thu Aug 03, 2006 5:09 pm

Does your regulator have a bubble counter?

Spine · Post by **Spine** » Thu Aug 03, 2006 5:17 pm

Yes,
I have a bubble counter.

Ghazanfar Ghori · Post by **Ghazanfar Ghori** » Thu Aug 03, 2006 5:32 pm

Ok fine - a serious answer then. Assuming you're not using
any pH buffers use the pH / KH chart to figure out what you pH should
be at 30 ppm of CO2. Then tweak your CO2 rate until your pH is at that
level a few hours after lights on. Its normal for the pH to climb a bit when
plants are photosyntesising at full swing during the day - so don't worry about
that too much.

Google "pH CO2 chart" - and you should find the chart I'm referring to.
Im in a rush otherwise I'd look it up for you.

Spine · Post by **Spine** » Thu Aug 03, 2006 6:23 pm

Thanks,

Kevin

Post by **krisw** » Thu Aug 03, 2006 8:07 pm

In case you didn't find it:

http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm

Aaron · Post by **Aaron** » Fri Aug 04, 2006 8:29 am

You can also look for a 1.0 drop in pH and that should be about the level of CO2 you'll want to be adding.

What sort of plants are you planning on adding? That will determine how much to dose.

Dosing & CO2 for a 120 Gal, Tank

Dosing & CO2 for a 120 Gal, Tank

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